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arXiv 2602.00489cs.CV
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通过学习笔触间的偏移属性来细化笔触,以实现灵活的笔触级草图编辑

Refining Strokes by Learning Offset Attributes between Strokes for Flexible Sketch Edit at Stroke-Level

School of Information and Intelligent Science, Donghua University(信息与智能科学学院,东华大学)

Sicong Zang, Tao Sun, Cairong Yan

AI总结:

SketchMod通过学习笔触间的偏移属性,实现对源笔触的精细化调整,以提高笔触级草图编辑的灵活性和准确性。

摘要:

在笔触级草图编辑中,目标是通过笔触扩展或替换将源笔触移植到目标草图上,同时保持与目标草图的语义一致性和视觉保真性。最近的研究通过将源笔触移动到合适的位置来解决这个问题。然而,由于源笔触在大小和方向上可能有显著变化,仅通过重新定位它们而不进行进一步调整可能会导致无法产生合理的草图编辑结果。例如,将一个 oversized 的源笔触固定在目标上而不进行适当的缩放,将无法产生语义上一致的结果。在本文中,我们提出了SketchMod,通过变换来细化源笔触,使其与目标草图的模式对齐,从而实现灵活的笔触级草图编辑。由于源笔触的细化由目标草图的模式决定,我们从源笔触到另一个笔触学习三个关键的偏移属性(缩放、方向和位置),并通过以下方式与目标对齐:1)通过缩放调整以匹配空间比例,2)通过方向旋转以对齐局部几何,3)通过位置移动以满足语义布局。此外,通过暴露的捕获笔触属性,可以在草图编辑过程中精确控制笔触的特征。实验结果表明,SketchMod在笔触级草图编辑中实现了精确且灵活的性能。

英文摘要:

Sketch edit at stroke-level aims to transplant source strokes onto a target sketch via stroke expansion or replacement, while preserving semantic consistency and visual fidelity with the target sketch. Recent studies addressed it by relocating source strokes at appropriate canvas positions. However, as source strokes could exhibit significant variations in both size and orientation, we may fail to produce plausible sketch editing results by merely repositioning them without further adjustments. For example, anchoring an oversized source stroke onto the target without proper scaling would fail to produce a semantically coherent outcome. In this paper, we propose SketchMod to refine the source stroke through transformation so as to align it with the target sketch's patterns, further realize flexible sketch edit at stroke-level. As the source stroke refinement is governed by the patterns of the target sketch, we learn three key offset attributes (scale, orientation and position) from the source stroke to another, and align it with the target by: 1) resizing to match spatial proportions by scale, 2) rotating to align with local geometry by orientation, and 3) displacing to meet with semantic layout by position. Besides, a stroke's profiles can be precisely controlled during sketch edit via the exposed captured stroke attributes. Experimental results indicate that SketchMod achieves precise and flexible performances on stroke-level sketch edit.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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